Home / 136,826,803.61-205,275,189.86-39,782,510.79

Finding the Fourth Proportional to 136,826,803.61, 205,275,189.86 and 39,782,510.79

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Solution

The fourth proportional to 136,826,803.61, 205,275,189.86 and 39,782,510.79 is: 59,683,937.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,826,803.61 : 205,275,189.86 = 39,782,510.79 : x
  2. Step 2: Convert to fraction form
    136,826,803.61/205,275,189.86 = 39,782,510.79/x
  3. Step 3: Cross multiply
    136,826,803.61x = 205,275,189.86 × 39,782,510.79
  4. Step 4: Simplify right side
    136,826,803.61x = 8,166,362,455,325,835
  5. Step 5: Solve for x
    x = 8,166,362,455,325,835/136,826,803.61
  6. Step 6: Final answer
    x = 59,683,937.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.